Use
You can use the mass change function to change items in several BOMs at once.

Objects for Mass Change
The mass change function is controlled by the object type of the item you change (see Item Entry and Master Record).
For each object type, the system makes specific checks:
- Object type Material
This object type groups together all the item categories that refer to a material master:
- Stock item
- Non-stock Item
- Variable-size item
- PM structure element
- Object type Document
This object type groups together all the items that refer to a document info record (document items).
- Object type Class
This object type groups together all the items that refer to a class (class items).
Features
You can use a mass change to perform the following functions:
- Change
- Deleting items
- Creating items
Create
With this function you can create a new material item, document item or class item in several BOMs that contain a specific reference object.
The object type of the reference object and the new item is irrelevant. For example, you can create a document in all BOMs that contain a particular material item.
Delete
This function enables you to delete an item from several BOMs.
Enter the data that identifies the item you want to delete.
Change
This function enables you to:
- Replace an item in several BOMs
- Change item data.
To change the quantity, you can enter a factor to multiply with the required quantity of the old component.

If you set the Relevancy to costing indicator or the Bulk material indicator, an additional check is made, because these 2 indicators are mutually exclusive. If one of these indicators is set (for example, Relevancy to costing), and you want to set the other (for example, Bulk material) in a mass change run, the system deletes the indicator that was set before (Relevancy to costing, in this example).
Selecting BOMs
If you do not want to replace the BOM component in all BOMs, you can enter selection criteria for the BOM or item to include only the BOMs you want to change. Then a list of the selected BOMs is displayed. From this list you select which BOMs and items you really want to change.
See also:
Reading the Log for Mass Changes

